THERMODYNAMIC AND STRUCTURAL COMPARISON BETWEEN 2 POTENTIAL METAL-HYDRIDE BATTERY MATERIALS LANI3.55MN0.4AL0.3CO0.75 AND CENI3.55MN0.4AL0.3CO0.75

Citation
Jm. Joubert et al., THERMODYNAMIC AND STRUCTURAL COMPARISON BETWEEN 2 POTENTIAL METAL-HYDRIDE BATTERY MATERIALS LANI3.55MN0.4AL0.3CO0.75 AND CENI3.55MN0.4AL0.3CO0.75, Journal of alloys and compounds, 277, 1998, pp. 118-122
Citations number
12
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
ISSN journal
09258388
Volume
277
Year of publication
1998
Pages
118 - 122
Database
ISI
SICI code
0925-8388(1998)277:<118:TASCB2>2.0.ZU;2-9
Abstract
The thermodynamic and structural properties of CeNi3.55Mn0.4Al0.3Co0.7 5, LaNi3.55Mn0.4Al0.3Co0.75 and their hydrides (deuterides) are compar ed. The isothermal curves have been measured. The lattice parameters a nd the occupancies of the various interstitial sites by deuterium have been determined by powder neutron diffraction. Differences between th e two compounds as regards the hydrogen absorption are interpreted in terms of the different atomic radii of lanthanum and cerium. The evolu tion of the valence of cerium as a function of hydrogen content is dis cussed. (C) 1998 Elsevier Science S.A.